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/*
* Copyright (C) 2014 Igalia S.L
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AudioSourceProviderGStreamer_h
#define AudioSourceProviderGStreamer_h
#if ENABLE(WEB_AUDIO) && ENABLE(VIDEO) && USE(GSTREAMER)
#include "AudioSourceProvider.h"
#include "GRefPtrGStreamer.h"
#include <gst/gst.h>
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
typedef struct _GstAdapter GstAdapter;
typedef struct _GstAppSink GstAppSink;
namespace WebCore {
class AudioSourceProviderGStreamer : public AudioSourceProvider {
WTF_MAKE_NONCOPYABLE(AudioSourceProviderGStreamer);
public:
AudioSourceProviderGStreamer();
~AudioSourceProviderGStreamer();
void configureAudioBin(GstElement* audioBin, GstElement* teePredecessor);
void provideInput(AudioBus*, size_t framesToProcess) override;
void setClient(AudioSourceProviderClient*) override;
const AudioSourceProviderClient* client() const { return m_client; }
void handleNewDeinterleavePad(GstPad*);
void deinterleavePadsConfigured();
void handleRemovedDeinterleavePad(GstPad*);
GstFlowReturn handleAudioBuffer(GstAppSink*);
GstElement* getAudioBin() const { return m_audioSinkBin.get(); }
void clearAdapters();
private:
GRefPtr<GstElement> m_audioSinkBin;
AudioSourceProviderClient* m_client;
int m_deinterleaveSourcePads;
GstAdapter* m_frontLeftAdapter;
GstAdapter* m_frontRightAdapter;
unsigned long m_deinterleavePadAddedHandlerId;
unsigned long m_deinterleaveNoMorePadsHandlerId;
unsigned long m_deinterleavePadRemovedHandlerId;
GMutex m_adapterMutex;
};
}
#endif // ENABLE(WEB_AUDIO) && ENABLE(VIDEO) && USE(GSTREAMER)
#endif // AudioSourceProviderGStreamer_h
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